In engineering areas such as chimneys, bridges, nuclear power plants, airplanes, submarines, and high buildings are exposed to fluid or gas flows. As we know, there are vibrations, loads, vortexes around bodies that are exposed flows. Also, these undesirable situations have required some solutions. In this regard, for solutions to such problems, analysis of flow around bodies concerning velocity distribution, streamlines, and vortexes are significant. From this perspective, because of its easy geometry, the flow around the cylinder has been investigated on velocity distribution, streamlines, vortexes for different fluids, and Reynolds numbers through Analysis CFX 14.5. The laminar and steady flow was handled for two different cases. Case 1 and case 2 differ in terms of boundary conditions for related fluids and Reynolds numbers. Finally, from the results in question vortex zones, both cases’ velocity and pressure distribution, and drag coefficient are compared for case 1 and case 2.

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